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结合对象关系特征的高分辨率卫星影像建筑物识别方法 总被引:1,自引:0,他引:1
基于面向对象特征影像分析的思想,提出了一种结合建筑物和阴影对象邻近关系特征的建筑物识别提取方法。在多尺度影像
分割的基础上,利用对象的光谱和形状等特征,建立简单的分类决策树,提取粗略的建筑物候选区和相对准确的阴影区。计算相邻
近阴影对象和建筑物对象的关系特征,建立简单的知识规则,即可从建筑物候选区中消除广场等噪音,获得准确有效的建筑物目标
信息。通过QuickBird卫星影像的实验,证明了该方法在高分辨率卫星影像建筑物目标识别中具有相当的适用性和准确性。 相似文献
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Treaty verification involves the acquisition and interpretation of data to establish a country's compliance to an agreement. Remote sensing and photogrammetry in verification is established in the intelligence community and is progressively entering the civilian sector as well. The Open Skies Treaty and the proliferation of commercial satellite imagery have created a niche for open, multilateral verification. These recent developments come at an opportune moment as the verification task has become more cumbersome and complex. This paper surveys the changes in the field of verification, aerial monitoring and satellite surveillance. It details existing and future verification tasks and presents the operational capabilities for fulfilling those tasks. The limiting factors are also presented. 相似文献
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The functions of CIPA. the International Committee for Architectural Photogrammetry, are reviewed. The Committee, established in 1970, has been the focus for developments in architectural photogrammetry. The objectives of CIPA and the methods of collecting and distributing information are discussed. Publications, meetings and technical studies sponsored by CIPA have been numerous and details of these are given. The future direction of CIPAs work is also considered. A bibliography of all major publications from CIPA is provided. 相似文献
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D. J. Gugan 《The Photogrammetric Record》1989,13(73):79-84
Forecasts are prone to error and forecasters are always liable to criticism. The author has been brave enough to attempt to predict some future trends in photogrammetry. 相似文献
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S. Robson 《The Photogrammetric Record》1991,13(77):703-716
Preliminary results of an investigation to study the dimensional reliability and potential of small format film products, allied with their use in small format cameras for photogrammetry, are presented. Investigations included analysis of factors influencing both in plane and out of plane deformations. Experiments were conducted using commercially available 70 mm, 120 and 220 film products, processed according to manufacturers’recommendations. Elements of camera design are discussed in the light of results obtained from the measurement of réseau images produced from a modified Hasselblad SWC camera. 相似文献
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H. Yzerman 《The Photogrammetric Record》1984,11(64):407-413
The new APY (Analytical Photogrammetry Yzerman) system is described and a detailed explanation is given of the principles involved. The APY depends on a unique modular design. A list of the straightforward operations required for its application in data compilation and revision is included. 相似文献
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The use of intermediate-scale space imagery in the analysis of current and ancient deforestation is exemplified by a case study in the southwestern quarter of East Germany, an area heavily deforested as a result of mining and agricultural activities. More specifically a mosaic of 1:1,000,000-scale Landsat imagery was used to compile a series of maps (of modern landscapes, forests, land use), the comparison of which provided an inventory of the causes and extent of deforestation over the study area. This in turn permitted linkages between losses of forest cover and other environmental problems to be identified. Translated by Jay K. Mitchell, PlanEcon Inc., Washington, DC 20005 from: Geografiya i prirodnyye resursy, 1988, No. 1, pp. 165-173. 相似文献
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A stereoscopic microscope has been used in combination with the body of a 35 mm camera to obtain stereophotographs, at scales up to 6:1, of objects only a few millimetres in size. Subsequent stereocomparator observations have been used to deduce height differences on the objects 10 a precision, for the mean of five sets of readings, of ±0.01 mm for closely spaced points. Using more widely separated points, the precision was estimated to be ± 0.05 mm. Depths were computed using × parallaxes after a number of parameters were fixed by calibration. The large convergence angle of the microscope axes was a crucial parameter; rotations about the camera axis were found to be significant variables. 相似文献
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本文详细介绍了利用我国卫星像片编制黄河三角洲地区专题系列图中土地利用图的试验过程,探讨了遥感专题系列制图的方法,并对我国卫星像片的质量做了简要的评价。 相似文献
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